2031186440

素因数分解:

$2^3\times 5^1\times {\mathrm{131}}^1\times {\mathrm{387631}}^1$

素因数の和:387773

約数の個数: 32

約数和(自身を含む): 4605068160

約数和(自身を除く): 2573881720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 131, 262, 524, 655, 1048, 1310, 2620, 5240, 387631, 775262, 1550524, 1938155, 3101048, 3876310, 7752620, 15505240, 50779661, 101559322, 203118644, 253898305, 406237288, 507796610, 1015593220, 2031186440]

約数ペア:

[(1, 2031186440), (2, 1015593220), (4, 507796610), (5, 406237288), (8, 253898305), (10, 203118644), (20, 101559322), (40, 50779661), (131, 15505240), (262, 7752620), (524, 3876310), (655, 3101048), (1048, 1938155), (1310, 1550524), (2620, 775262), (5240, 387631)]